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What are the factors affecting the precision of the laser cutting processing
by：Transon
2021-01-08
The processing precision of laser cutting by machine performance, the beam quality, processing phenomenon, but the overall accuracy of decision.
a, about changes in the even carried out in accordance with the procedures for cutting, there are also processed products can not meet the accuracy requirement. So you need to take countermeasures according to different situations.
1, the size of processed products have change
this is because the incision laser focus on the diameter and the surrounding incision that is affected by the width of burning area.
while under the same conditions, the same processing, using the same offset compensation value can ensure its accuracy, but the focus position setting will depend on the feeling of machine operators to determine, and the thermal lens effect can cause the change of focus position, so you need to regularly check the offset compensation value.
2, processing direction ( Section) Is there a difference on the size of the error of
the upper plate of the dimensional accuracy and dimensional accuracy has different situation. This phenomenon to consider two reasons. First of all, roundness and intensity distribution of a light beam, cause incision width along the direction of processing is different. The solution is to clean optical axis adjustment or optical components. Second, by machining material thermal expansion causes of shorter size long direction shape.
3, warping caused change size accuracy while within the scope of the requirements, but because the reason such as the thermal deformation will result in warping. When processing such as aluminum, copper, stainless steel is very significant, it is affected by the linear expansion coefficient, heat capacity and other physical properties. As for machining shape, aspect ratio, the greater the amount of warping. With low heat processing condition and processing circuit of fluctuate in the machining program, but is not completely solve the problem.
processing panel have had some effect on the residual stress of warping and size error, so we need to process always keep a certain direction.
4, spacing accuracy change processing is porous, the spacing between holes and hole accuracy will appear deviation. Due to the hole in the case of thermal expansion, after cooling contraction, spacing is smaller. We can package contraction in the program of the precision of the part or the flexible use of shape zoom function. In any case, after the initial processing, measure its dimensions, error. When the interval does not change according to the machining position precision, but in the whole processing zone worsens, the reason is caused by the deterioration of mechanical precision.
5, roundness change in laser machining of the hole cut surface slope is unavoidable, the diameter is larger than diameter on the back, usually smaller on the back side of the roundness assessment.
a, about changes in the even carried out in accordance with the procedures for cutting, there are also processed products can not meet the accuracy requirement. So you need to take countermeasures according to different situations.
1, the size of processed products have change
this is because the incision laser focus on the diameter and the surrounding incision that is affected by the width of burning area.
while under the same conditions, the same processing, using the same offset compensation value can ensure its accuracy, but the focus position setting will depend on the feeling of machine operators to determine, and the thermal lens effect can cause the change of focus position, so you need to regularly check the offset compensation value.
2, processing direction ( Section) Is there a difference on the size of the error of
the upper plate of the dimensional accuracy and dimensional accuracy has different situation. This phenomenon to consider two reasons. First of all, roundness and intensity distribution of a light beam, cause incision width along the direction of processing is different. The solution is to clean optical axis adjustment or optical components. Second, by machining material thermal expansion causes of shorter size long direction shape.
3, warping caused change size accuracy while within the scope of the requirements, but because the reason such as the thermal deformation will result in warping. When processing such as aluminum, copper, stainless steel is very significant, it is affected by the linear expansion coefficient, heat capacity and other physical properties. As for machining shape, aspect ratio, the greater the amount of warping. With low heat processing condition and processing circuit of fluctuate in the machining program, but is not completely solve the problem.
processing panel have had some effect on the residual stress of warping and size error, so we need to process always keep a certain direction.
4, spacing accuracy change processing is porous, the spacing between holes and hole accuracy will appear deviation. Due to the hole in the case of thermal expansion, after cooling contraction, spacing is smaller. We can package contraction in the program of the precision of the part or the flexible use of shape zoom function. In any case, after the initial processing, measure its dimensions, error. When the interval does not change according to the machining position precision, but in the whole processing zone worsens, the reason is caused by the deterioration of mechanical precision.
5, roundness change in laser machining of the hole cut surface slope is unavoidable, the diameter is larger than diameter on the back, usually smaller on the back side of the roundness assessment.
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